17. The Thing's Penis Is Made Of Orange Rock
For years, comic book fans wondered if Ben Grimm's rocky transformation had left him without a penis. It's an admittedly strange subject to debate, but one which Stan Lee was more than happy to clear up in 2011. The Thing does indeed have a fully functioning orange rocky penis (something the version played by Jamie Bell in the Fantastic Four reboot doesn't appear to have based on the images of him walking around with no trousers). As for Reed... well, use you imagination.